Question

An open vessel contains air at 27°C. The vessel is
heated till two-fifth of the air in it has been expelled.
Assuming the volume of the vessel remains constant,
find the temperature to which the vessel has to be
heated?
(NSEJS, 2018]
(A) 750 K (B) 700 K (C) 550 K (D) 500K​

Answer 1

Answer:

750 k

Explanation:

t1n1=t2n2

t1 =300 k ,n1=n

t2=T n2=2n/5

300n = 2n/5T

T = 750 k